69znc & hp2 ...
I think we're saying the same things ... 20% loss in a street car is to be expected ... give or take a little ... depending on auto or manual transmission & a few variables.
I think the newer cars in the last 10-15 years have accessories that draw less power & more efficient drivetrains. I suspect if we compared a newer Camaro, Mustang, Challenger or Corvette, we would see numbers under 20%.
Just my 2 cents.
|